JP3655652B2 - 自動的通話方向切換のための方法および回路装置 - Google Patents

自動的通話方向切換のための方法および回路装置 Download PDF

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Publication number
JP3655652B2
JP3655652B2 JP23026094A JP23026094A JP3655652B2 JP 3655652 B2 JP3655652 B2 JP 3655652B2 JP 23026094 A JP23026094 A JP 23026094A JP 23026094 A JP23026094 A JP 23026094A JP 3655652 B2 JP3655652 B2 JP 3655652B2
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JP
Japan
Prior art keywords
signal
attenuation
value
attenuation value
low
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP23026094A
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English (en)
Japanese (ja)
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JPH07107152A (ja
Inventor
デゲンハルト アヒム
ヘンケル トーマス
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
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Siemens AG
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Filing date
Publication date
Priority claimed from DE4403532A external-priority patent/DE4403532C1/de
Application filed by Siemens AG filed Critical Siemens AG
Publication of JPH07107152A publication Critical patent/JPH07107152A/ja
Application granted granted Critical
Publication of JP3655652B2 publication Critical patent/JP3655652B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Transceivers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
JP23026094A 1993-09-02 1994-08-31 自動的通話方向切換のための方法および回路装置 Expired - Fee Related JP3655652B2 (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4329694 1993-09-02
DE4403532.2 1994-02-04
DE4329694.7 1994-02-04
DE4403532A DE4403532C1 (de) 1993-09-02 1994-02-04 Verfahren zur automatischen Sprachrichtungsumschaltung und Schaltungsanordnung zur Durchführung des Verfahrens

Publications (2)

Publication Number Publication Date
JPH07107152A JPH07107152A (ja) 1995-04-21
JP3655652B2 true JP3655652B2 (ja) 2005-06-02

Family

ID=25929174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23026094A Expired - Fee Related JP3655652B2 (ja) 1993-09-02 1994-08-31 自動的通話方向切換のための方法および回路装置

Country Status (5)

Country Link
US (1) US5586180A (de)
EP (1) EP0642251B1 (de)
JP (1) JP3655652B2 (de)
AT (1) ATE343297T1 (de)
DE (1) DE59410442D1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07297900A (ja) * 1994-04-26 1995-11-10 Mitsubishi Electric Corp 騒音対策通話機
DE19506324C1 (de) * 1995-02-23 1995-10-12 Siemens Ag Adaptives Balancefilter
US6556967B1 (en) * 1999-03-12 2003-04-29 The United States Of America As Represented By The National Security Agency Voice activity detector
US7016835B2 (en) * 1999-10-29 2006-03-21 International Business Machines Corporation Speech and signal digitization by using recognition metrics to select from multiple techniques
JP2005252933A (ja) * 2004-03-08 2005-09-15 Matsushita Electric Ind Co Ltd Ａｍラジオ受信機
US9570093B2 (en) * 2013-09-09 2017-02-14 Huawei Technologies Co., Ltd. Unvoiced/voiced decision for speech processing

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4542263A (en) * 1984-03-07 1985-09-17 Oki Electric Industry Co., Ltd. Speech control circuit
DE3908282A1 (de) * 1989-03-14 1990-09-20 Siemens Ag Sprechrichtungserkennung in einer digitalen fernsprechstation
EP0423537B1 (de) * 1989-10-18 1995-03-01 Siemens Aktiengesellschaft Verfahren zur automatischen Sprachrichtungsumschaltung und Schaltungsanordnung zur Durchführung des Verfahrens

Also Published As

Publication number Publication date
ATE343297T1 (de) 2006-11-15
EP0642251A3 (de) 1999-12-15
EP0642251B1 (de) 2006-10-18
US5586180A (en) 1996-12-17
DE59410442D1 (de) 2006-11-30
EP0642251A2 (de) 1995-03-08
JPH07107152A (ja) 1995-04-21

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